User's Manual

Table Of Contents
Appendix
Calculating Depth Based on
Distance Between FLP and RLP
It is possible to estimate the transmitter’s depth should the information displayed in the depth/distance
window become unreliable. This is only possible if the pitch and negative locate points are reliable and
the ground surface is level.
To estimate the transmitter’s depth, first measure the distance between the FLP and the RLP. The pitch
of the transmitter must also be reliably known. Using the Depth Estimation Table below, find the divider
that most closely corresponds to the transmitter’s pitch. Then use the following formula to estimate the
depth:
Divider
RLPandFLPbetweenDistance
Depth =
For example, if the transmitter’s pitch is 34% then the corresponding divider value (from the table) is 1.50.
In this example, the distance between the FLP and the RLP is 11.5 ft (3.5 m). The depth would be:
7.66
1.50
ft 11.5
Depth ==
ft or approximately 7.7 ft (2.35 m)
Depth Estimation Table
Pitch Divider Pitch Divider Pitch Divider Pitch Divider
0 1.41 26 1.47 52 1.62 78 1.84
2 1.41 28 1.48 54 1.63 80 1.85
4 1.42 30 1.48 56 1.64 82 1.87
6 1.42 32 1.49 58 1.66 84 1.89
8 1.42 34 1.50 60 1.68 86 1.91
10 1.42 36 1.51 62 1.69 88 1.93
12 1.43 38 1.52 64 1.71 90 1.96
14 1.43 40 1.54 66 1.73 92 1.98
16 1.43 42 1.55 68 1.74 94 2.00
18 1.44 44 1.56 70 1.76 96 2.02
20 1.45 46 1.57 72 1.78 98 2.04
22 1.45 48 1.59 74 1.80 100 2.06
24 1.46 50 1.60 76 1.82
DigiTrak
®
Eclipse
®
Operator’s Manual 73